I put a new black ink tank in, it printed some documents fine for a while then the next day it would not print black text.i have done the deep head cleaning process a few times, i have uninstalled the driver and reinstalled it a few times still no change when print a test page all colors are fine and the little squares on the left side with the 6C inbetween them are fine but the black grid that is supposed to be above the color lines is not there.i have checked the fonts the cartrige, the print head alinment,page setup printer setup, still no change, could it be a dodgy cartrige or damaged print head?
First of all the most important auestion is have you used compatible ink cartridges or genuine ones, because the print head clogs up with compatible ones, i really doubt that the cartridge you installed is damaged because i haven't come across this and i am a canon technician, i know this model well
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yes because u installed both cartridges. if you only installed the color it will still print black by mixing the three colors (known as composite black) try to change the black first or remove it and use the composite black to print black text.
One tank is reserved for colour printing and the other one is for grayscale printing ( Black and white). Watch out as when you run out of ink and you keep trying to print a document with empty tank cartridge it will cause your print head to go bad. The cost of a new canon print head is the same as the cost of a new printer. Canon over priced the print head.
One ovbious option would be to have a friend print it out. I assume that is not an option.
Some printers just won't let you print if a single color is out. Yes, stupid. Try printing a blank page. If it fails, there is no other option but to replace the cartridge or print elsewhere. If the blank page test works, this next option/test is worth a try... Depending on the app you are using, you can specify the color breakdown of the colors you are using. In your case, it is possible that the text is set to a rich black (4-color) rather than just black. If that is the case, to test this most quickly, make a new file, and create a new black (black2), set to 100 black, 0% other colors. Type a wor and set it to print in that color and try to print it. If that works, apply the same technique to your real document. Hope it works. I've been stuck in the same situation, and some printers will just not let you print if a single color is out. Good luck. DigiChick
On some printers, probably including yours, the black ink will be taken from the reserves in your colour cartridge unless you specifically tell it to do a black and white print on each document, regardless of whether it's printing black exclusively. I wouldn't worry, the black ink in it's own cartridge can also be used for colour photos etc with no detrimental effects.
I found a solution to the Black printing problem :)
Under Printing Preferences: Set your Media Type to Photo Paper Pro.
We used edible ink cartridges and printed onto icing sugar paper. Same old... Just one day it refused to print black. In order to continue our small business, I degraded the color until I printed gray and not black.
Tonight, I browsed for the problem and came across this :)